On December 31, Year 3, Mueller Corp. acquired 80% of the outstanding shares of Wilson Inc. for a total cost of $275,000. The carrying amount of Wilson's assets, liabilities, and equity was equal to fair value except for the following: Inventory Equipment, net Patent Long-term debt Common shares Retained earnings Carrying Amount $ 61,600 286,000 Fair Value $ 71,200 292,000 196,000 191,000 45,200 43,200 163,200 ? ? As at December 31, Year 3, the equipment and patent had an estimated useful life of six and eight years, respectively. The long-term debt is due on January 1, Year 9. There was a goodwill impairment loss of $3,000 in Year 5. There were no other impairment losses. Mueller uses the cost method to account for its investment in Wilson. The book values of selected accounts for the year ended December 31, Year 7 were as follows: Dividend income Net income Common shares Retained earnings Mueller $ 13,600 65,200 108,000 282,000 Wilson $ 29,200 191,000 142,000 Required: (a) Prepare a schedule of changes to the acquisition differential for the four year period ending December 31, Year 7. (Leave no cells blank - be certain to enter "O" wherever required. Omit $ sign in your response. Negative/Deductible amounts should be indicated by a minus sign.) Inventory Equipment (6 years) Patents (8 years) Long-term debt (5 years) Goodwill Balance Dec. 1 Year 3 $ Balance Changes Year 4, 5&6 $ Year 7 Dec. 31 Year 7 $ (b) Calculate consolidated net income attributable to the parent, ending retained earnings and non-controlling interest at December 31, Year 7. (Omit $ sign in your response.) Consolidated net income attributable to the parent Consolidated retained earnings Non-controlling interest